HomeMy WebLinkAboutD-401702BID SETSWP - 27 - 4017LAKE YOUNGS CT SE
STORM & WATER IMPROVEMENTS
STANDARD PLAN NOTES &
CONSTRUCTION SEQUENCE
GENERAL PROJECT NOTES
1.ALL WORK AND MATERIALS SHALL BE IN ACCORDANCE WITH THE CITY OF RENTON STANDARDS
AND SPECIFICATIONS AND WASHINGTON STATE DEPARTMENT OF TRANSPORTATION
"STANDARD SPECIFICATIONS FOR ROAD, BRIDGE, AND MUNICIPAL CONSTRUCTION", 2018 AND
AS AMENDED BY THE CITY OF RENTON SUPPLEMENTAL SPECIFICATIONS AND THE CONTRACTSPECIAL PROVISIONS.
2.ALL WORK SHALL BE SUBJECT TO THE INSPECTION OF THE CITY ENGINEER OR DESIGNATED
REPRESENTATIVE.
3.THE CONTRACTOR SHALL BE RESPONSIBLE FOR PREPARATION OF TRAFFIC CONTROL PLANS.CONTRACTOR SHALL SUBMIT PLANS TO THE ENGINEER FOR APPROVAL PRIOR TO
IMPLEMENTATION. EXCEPT FOR AS SPECIFICALLY NOTED, CONTRACTOR SHALL MAINTAIN A
MINIMUM OF ONE LANE OPEN IN EACH DIRECTION AT ALL TIMES ON ALL ROADS WITHIN THE
PROJECT AREA.
4.SITE CONSTRUCTION LIMITS (PRESERVATION LINES) COINCIDE WITH CITY RIGHT-OF-WAY
UNLESS SHOWN OTHERWISE.
5.NO STAGING AREA IS PROVIDED TO THE CONTRACTOR. ALL STAGING AREAS SHALL BE ON A
CONTRACTOR SECURED AREA. ALL TESC REQUIREMENTS APPLY TO THE CONTRACTOR'S
OBTAINED STAGING AREA.
CONSTRUCTION SEQUENCE NOTES
1.CONTRACTOR SHALL SUBMIT A TRAFFIC CONTROL PLAN, TESC PLAN, STAGING PLAN, UTILITY
PROTECTION PLAN AND MATERIALS SUBMITTALS.
2.WATER SERVICES TO LOCAL RESIDENTS MUST REMAIN OPERATIONAL DURING CONSTRUCTION.
TRANSFER OF SERVICES SHALL BE IMPLEMENTED PER NOTES ON SHEET C500-C503.
CONTRACTOR SHALL SUBMIT A CONSTRUCTION SEQUENCE PLAN PRIOR TO CONSTRUCTION.
3.CONTRACTOR SHALL ATTEND A PRE CONSTRUCTION CONFERENCE.
4.CONTRACOTR SHALL IMPLEMENT DEWATERING SYSTEM IF NEEDED.
1 NOT TO SCALE
EROSION AND SEDIMENT
CONTROL STANDARD PLAN NOTES 2 NOT TO SCALE
SURFACE WATER STANDARD PLAN NOTES
WATER UTILITY GENERAL NOTES
1.ALL WORK AND MATERIALS SHALL BE IN ACCORDANCE WITH THE LATEST EDITION OF THE CITY OF RENTON PUBLIC
WORKS STANDARD SPECIFICATIONS AND SPECIAL PROVISIONS, THE CITY OF RENTON DEVELOPER EXTENSION
AGREEMENT, AND WSDOT STANDARD SPECIFICATIONS, LATEST EDITION AS AMENDED BY THE CITY OF RENTON.
2.THE LOCATIONS OF ALL EXISTING UTILITIES SHOWN HEREON HAVE BEEN ESTABLISHED BY FIELD SURVEY OR OBTAINED
FROM AVAILABLE RECORDS AND SHOULD THEREFORE BE CONSIDERED APPROXIMATE ONLY AND NOT NECESSARILYCOMPLETE. IT IS THE SOLE RESPONSIBILITY OF THE CONTRACTOR TO INDEPENDENTLY VERIFY THE ACCURACY OF ALL
UTILITY LOCATIONS SHOWN, AND TO FURTHER DISCOVER AND AVOID ANY OTHER UTILITIES NOT SHOWN HEREON
WHICH MAY BE AFFECTED BY THE IMPLEMENTATION OF THIS PLAN.
3.ALL EXISTING UTILITIES SHALL REMAIN IN SERVICE DURING CONSTRUCTION UNLESS OTHERWISE NOTED. THE
CONTRACTOR SHALL CALL 1-800-424-5555 OR 811 TO VERIFY UTILITY LOCATIONS A MINIMUM OF 72 HOURS BEFORE
BEGINNING EXCAVATION.
4.ALL MATERIALS USED FOR THE CONSTRUCTION OF WATER SYSTEM IMPROVEMENTS SHALL BE NEW AND UNDAMAGED,
AND “CATALOG CUTS” FOR ALL MATERIALS SHALL BE APPROVED IN WRITING BY THE CITY OF RENTON PRIOR TO
BRINGING ANY MATERIALS ON-SITE.
5.ALL WATER MAIN PIPE MATERIALS SHALL BE CEMENT-LINED DUCTILE IRON PIPE, THICKNESS CLASS 52 PER AWWA C151AND C104 STANDARDS. PIPE JOINTS SHALL BE PUSH-ON OR MECHANICAL JOINT. CAST IRON OR DUCTILE IRON PIPE
FITTINGS SHALL BE CLASS 250 AS PER ANSI/AWWA C110/A21.10-82 STANDARDS. ALL DUCTILE IRON PIPE AND FITTINGS
SHALL BE WRAPPED WITH 8-MIL BLACK, TUBE-TYPE, POLYETHYLENE PLASTIC PER AWWA C105 STANDARDS.
6.ALL PIPE AND FITTINGS NOT TO BE DISINFECTED IN PLACE SHALL BE SWABBED WITH 1% AVAILABLE CHLORINE
SOLUTION PRIOR TO INSTALLATION.
7.IN CUT AND FILL AREAS, THE WATER MAIN SHALL BE INSTALLED ONLY AFTER THE TRENCH AND ROADWAY SUBGRADE
MATERIALS HAVE BEEN GRADED AND COMPACTED.
8.BEFORE COMMENCEMENT OF TRENCHING, THE CONTRACTOR SHALL PROVIDE CATCH BASIN INSERTS FOR ALL CATCH
BASINS THAT WILL RECEIVE RUNOFF FROM THE PROJECT SITE. THE CONTRACTOR SHALL PERIODICALLY INSPECT THECONDITION OF ALL INSERTS AND REPLACE AS NECESSARY.
9.MINIMUM COVER FROM TOP OF WATER MAINS TO FINISHED GRADE SHALL BE 36 INCHES (36") FOR PIPE DIAMETER OF 10
INCHES (10") OR LESS AND 48 INCHES (48") FOR PIPE DIAMETER OF 12 INCHES (12") AND LARGER. MAXIMUM COVER FOR
ALL WATER MAINS SHALL BE 72 INCHES (72"). ANY DEVIATIONS MUST BE APPROVED BY THE CITY OF RENTON PRIOR TO
CONSTRUCTION. WHERE UTILITY CONFLICTS OCCUR, THE PROFILE OF THE WATER MAIN SHALL BE ADJUSTED ASNECESSARY TO CLEAR CONFLICTS AND TO PROVIDE 12-INCH (12") MINIMUM VERTICAL CLEARANCE BETWEEN UTILITIES
AND MINIMUM COVER. PIPE DEFLECTION SHALL NOT EXCEED ONE-HALF OF PIPE MANUFACTURER'S SPECIFICATION FOR
SIZE OF PIPE USED. ALL TRENCH BACKFILL SHALL BE COMPACTED TO 95 PERCENT MAXIMUM DRY DENSITY AS
DETERMINED BY THE MODIFIED PROCTOR TEST METHOD (MDD) IN ROADWAYS, ROADWAY SHOULDERS, ROADWAY
PRISM AND DRIVEWAYS, AND 85 PERCENT MDD IN UNPAVED AREAS. ALL PIPE ZONE COMPACTION SHALL BE 95 MDD.
10.CONCRETE BLOCKING FOR WATER MAINS SHALL BE DESIGNED, INSTALLED, AND POURED INTO PLACE IN ACCORDANCE
WITH THE CITY OF RENTON STANDARD DETAILS AND SPECIFICATIONS AND SHALL BE INSTALLED AT ALL VERTICAL AND
HORIZONTAL BENDS, FITTINGS, AND BASE OF HYDRANTS. MEGALUGS (OR SIMILAR PRODUCT) MAY BE REQUIRED ON
ALL MECHANICAL JOINTS IN ADDITION TO CONCRETE BLOCKING.
11.ALL SERVICES SHALL BE 1-INCH BY 1-INCH (1" X 1") PER STANDARD DETAILS UNLESS OTHERWISE SPECIFIED. ADAPTERS
FOR 3/4-INCH BY 5/8-INCH (3/4" X 5/8") METERS SHALL BE USED WHERE APPLICABLE.
12.UNIFORM PLUMBING CODE REQUIRES THE INSTALLATION OF PRIVATELY OWNED AND OPERATED PRESSURE REDUCING
VALVES WHERE THE OPERATING PRESSURE EXCEEDS 80 PSI.
13.WHERE NEW UTILITY LINE CROSSES BELOW AN EXISTING ASBESTOS CONCRETE (AC) MAIN, THE AC PIPE SHALL BE
REPLACED WITH DUCTILE IRON (DI) PIPE TO 3 FEET (3') PAST EACH SIDE OF THE TRENCH AS SHOWN ON CITY OF RENTON
STANDARD PLAN 330.8. WRAP DI PIPE AND COUPLINGS WITH 8-MIL POLYETHYLENE CONFORMING TO AWWA C105.ALTERNATIVELY, WHERE DIRECTED BY THE ENGINEER, THE TRENCH SHALL BE BACKFILLED WITH CONTROLLED DENSITY
FILL (CDF, FLOWABLE FILL) FROM BOTTOM OF TRENCH TO THE INVERT OF THE AC MAIN.
14.WHEN WORKING WITH ASBESTOS CEMENT PIPE, THE CONTRACTOR IS REQUIRED TO MAINTAIN WORKERS' EXPOSURE
TO ASBESTOS MATERIAL AT OR BELOW THE LIMIT PRESCRIBED IN WAC 296-62-07705.
15.AVOID CROSSING WATER MAINS AT HIGHLY ACUTE ANGLES. THE SMALLEST ANGLE MEASURE BETWEEN UTILITIES
SHOULD BE 45 TO 90 DEGREES.
16.WHERE WATER MAIN CROSSES ABOVE OR BELOW SANITARY SEWER, ONE FULL LENGTH OF WATER PIPE SHALL BE
CENTERED FOR MAXIMUM JOINT SEPARATION.
17.AT POINTS WHERE EXISTING THRUST BLOCKING IS FOUND, MINIMUM CLEARANCE BETWEEN THE CONCRETE BLOCKING
AND OTHER BURIED UTILITIES OR STRUCTURES SHALL BE 5 FEET (5').
18.ALL NEW WATER MAIN PIPES AND FITTINGS SHALL HAVE A FOAM PIPE PIG RUN THROUGH THEM PRIOR TO BEING
FLUSHED, DISINFECTED, AND TESTED. CLEANING, PRESSURE AND PURITY TESTING SHALL BE DONE IN THE PRESENCE
OF AND UNDER THE SUPERVISION OF A CITY OF RENTON UTILITY INSPECTOR. THE CONTRACTOR SHALL SUPPLY,
INSTALL, AND REMOVE PLUGS, CORPORATION STOPS, BLOW-OFF ASSEMBLIES, AND THRUST RESTRAINT/BLOCKING FOR
TESTING AND PURITY ACCEPTANCE. NO CONNECTION SHALL BE MADE BETWEEN THE NEW MAIN OR BETWEEN THE NEW
WET-TAP VALVE TO AN EXISTING MAIN UNTIL THE NEW PIPING HAS BEEN FOAM-PIGGED, DISINFECTED, FLUSHED, AND
PASSED BOTH PRESSURE AND PURITY TESTING.
19.NEW WATER MAINS INCLUDING SERVICE LATERALS SHALL BE TESTED AT A STATIC PRESSURE OF 150 PSI ABOVE
WORKING PRESSURE WITH A MINIMUM OF 225 PSI TEST PRESSURE FOR 120 MINUTES WITH A MAXIMUM OF 5 PSIPRESSURE DROP DURING THE ENTIRE TEST PERIOD. UPON SATISFACTORY COMPLETION OF THE PRESSURE TEST, THE
LINE SHALL BE DISINFECTED, FLUSHED, AND THEN WATER SAMPLES SHALL BE TAKEN FOR PURITY TESTING BY A CITY
OF RENTON UTILITY INSPECTOR.
20.AFTER DISINFECTING THE WATER MAIN, DISPOSE OF CHLORINATED WATER BY DISCHARGING TO THE NEAREST
OPERATING SANITARY SEWER.
21.THE CONTRACTOR SHALL NOTIFY THE CITY OF RENTON WATER UTILITY AND MAINTENANCE DEPARTMENTS A MINIMUM
OF 10 WORKING DAYS PRIOR TO MAKING CONNECTIONS TO THE EXISTING WATER SYSTEM. WATER MAIN SHUTOFFS
SHALL NOT BE SCHEDULED TO OCCUR ON FRIDAYS, CITY HOLIDAYS, NOR ON THE FIVE DAYS OR ONE DAY AFTER A CITY
HOLIDAY, UNLESS APPROVED BY THE CITY OF RENTON WATER UTILITY. THE CONTRACTOR SHALL EXPOSE THE
EXISTING WATER MAIN AND FITTINGS AT THE CONNECTION POINT BEFORE ORDERING THE NECESSARY ADAPTORS AND
FITTINGS REQUIRED FOR THE FINAL CONNECTION. THE CONTRACTOR SHALL EXCAVATE, REMOVE ALL SURFACE
MATERIALS, AND PROVIDE SHORING AND ALL MATERIALS REQUIRED FOR THE CITY OF RENTON TO PERFORM THE
CONNECTION TO THE EXISTING WATER SYSTEM. THE CONTRACTOR SHALL PROVIDE AND INSTALL BACKFILL, CONCRETE
CLOCKING, AND COMPLETE SURFACE RESTORATION. SEE SECTION 3-08 CONNECTIONS TO EXISTING SYSTEM OF THE
CITY OF RENTON GENERAL DESIGN AND CONSTRUCTION STANDARDS FOR WATER MAIN EXTENSIONS.
22.ABANDONMENT OF EXISTING WATER SERVICES SHALL BE ACCOMPLISHED AS FOLLOWS:
A.REMOVE EXISTING SERVICE SADDLE FROM WATER MAIN AND REPLACE WITH NEW STAINLESS STEEL REPAIR
BAND, ROMAC SS2, FORD SERVICE SADDLE FC101, CC THREADED SADDLE AND A CC THREAD BRASS PLUG, OR
APPROVED EQUAL (WILL NOT BE REQUIRED WHEN WATER MAIN IS TO BE ABANDONED).
B.REMOVE AND DISPOSE OF EXISTING SETTER AND METER BOX.
C.CAP OR CRIMP (IF COPPER) EXISTING SERVICE LINE TO BE ABANDONED IN PLACE, EACH END.
D.RETURN EXISTING METER TO CITY OF RENTON UTILITY INSPECTOR.
23.THE CONTRACTOR SHALL USE A VACUUM STREET SWEEPER TO REMOVE DUST AND DEBRIS FROM PAVEMENT AREAS AS
DIRECTED BY THE ENGINEER. FLUSHING OF STREETS SHALL NOT BE PERMITTED WITHOUT PRIOR CITY APPROVAL.
24.TRENCH BACKFILL AND SURFACE RESTORATION OF EXISTING ASPHALT PAVEMENT SHALL BE AS REQUIRED BY THE
RIGHT-OF-WAY USE PERMIT.
25.THE CONTRACTOR SHALL RESTORE THE RIGHT-OF-WAY AND EXISTING PUBLIC UTILITY EASEMENT(S) AFTER
CONSTRUCTION TO A CONDITION EQUAL OR BETTER THAN CONDITION PRIOR TO ENTRY. THE CONTRACTOR SHALL
FURNISH A SIGNED RELEASE FROM ALL AFFECTED PROPERTY OWNERS AFTER RESTORATION HAS BEEN COMPLETED.
26.WHEN WORK IS TO OCCUR IN EASEMENTS, THE CONTRACTOR SHALL NOTIFY THE EASEMENT GRANTOR AND THE CITYOF RENTON WATER UTILITY IN WRITING A MINIMUM OF 48 HOURS IN ADVANCE OF BEGINNING WORK (NOT INCLUDING
WEEKENDS OR HOLIDAYS). FAILURE TO NOTIFY GRANTOR AND THE CITY OF RENTON WATER UTILITY WILL RESULT IN A
STOP WORK ORDER BEING POSTED UNTIL THE MATTER IS RESOLVED TO THE SATISFACTION OF THE CITY OF RENTON
WATER UTILITY. A WRITTEN RELEASE FROM THE EASEMENT GRANTOR SHALL BE FURNISHED TO THE CITY OF RENTON
UTILITY INSPECTOR PRIOR TO PERMIT SIGN-OFF.
27.WORKERS MUST FOLLOW CONFINED SPACE REGULATIONS AND PROCEDURES WHEN ENTERING OR DOING WORK IN
CITY OF RENTON OWNED CONFINED SPACES.
28.MANHOLES, CATCH BASINS AND VAULTS ARE CONSIDERED TO BE PERMIT-REQUIRED CONFINED SPACES. ENTRY INTO
THESE SPACES SHALL BE IN ACCORDANCE WITH CHAPTER 296-809 WAC.JARED MCDON
A
LDPROFESSIONAL ENG IN EE RREGISTEREDSTATE OF WASHIN
GTON05/09/19AS-BUILTAS-BUILT1 BS 06/28 JM
D-401702